Kipkoech is a given name of Kenyan origin meaning "(male) born in the morning". Son/daughters of Kipkoech would then be named "Koech" as their last name and given their individual given names; achieved by just removing the prefix "kip" as it happens to most other similar names that start with 'Kip" from that particular community or whoever understands the meaning and ways to inherit the name.
Benjamin Kipkoech Limo (born 1974), Kenyan track runner and 2005 world champion over 5000 metres
Elisha Kipkoech Tanui (born 1983), Kenyan ultra-distance runner
John Kipkoech (born 1991), Kenyan 5000 metres runner
Johnstone Kipkoech (born 1968), Kenyan long-distance runner
Josphat Bett Kipkoech (born 1990), Kenyan long-distance runner
Mathew Kipkoech Kisorio (born 1988), Kenyan half marathon runner
Paul Kipkoech (1963–1995), Kenyan long-distance runner
Robert Kipkoech Cheruiyot (born 1978), Kenyan marathon runner and four-time Boston Marathon winner
Wilfred Kipkoech Taragon (born 1985), Kenyan half marathon runner
Kipkoech Cheruiyot (born 1964), Kenyan middle-distance runner